ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,817, issued on May 5, was assigned to Thermo Fisher Scientific (Shanghai) Instruments Co. Ltd. (Shanghai).

"Compact dehydration and trap module" was invented by Te Yu Hung (Shanghai), Chien Kuo Chang (Shanghai), Colin Zou (Shanghai), Rong Hua Chen (Shanghai) and Jun Fang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Gas detection devices comprise a dehydration unit a concentration unit, and a temperature control unit for controlling a temperature. The gas detection device includes a sampling mode in which sample gas flows into and out of the dehydration unit through a first port and a second port, respectively, wherein the volatile organic ...